Plate glass rolling machine



Nov. 24, 1931. R. GENENGER PLATE GLASS ROLLING MACHINE 3 Sheets-Sheet 1 Filed July 1. 1930 'zww Nair. 24, 1931.

R. GEN ENGER PLATE GLASS ROLLING MACHINE .Filed July 1, 1930 3 Shets-Sheet 2 ,INVENTOR 19150 GEM/lam flTTORNEY Nov. 24, 1931. R. GENENGER 1,833,248

PLATE GLASS ROLLING MACHINE Filed July 1, 1950 5 Sheets-She et a Patented Nov. 1 931 I 7 UNITED STATES PATENT OFFICE mm emcee, or VAACHEN-I'OBST, enemy, Assrenoa 'ro 1w. v. mn'rscmrrlr I 'ror 131mm EN nxrmrrnzm: vm ocraoomn', or THE HAGUE, 1mm

PLATE GLASS RQLIJIN'G MACHINE Application filed Inlyl, 1930, Serial No.

This invention relates toa machine for rolling plate glass, and has more particularly reference to that kind of machines in which the whole content of a glass melting pot is discharged in one turn onto a receiver ad jacentto the rolling mechanism and rolled by the same into a sheet which is passed over an inclined chute to travelling'tables, rollers,

endless bands or other conveying means. In

10 order to attain in these machines a proper feeding of the liquid glass mass to the forming' rolls, the receiver and the upper one of these rolls are made tiltable, for instance about the axis of the lower roll, in order to allow the receiver .to be swung from its initial almost horizontal position to aninclined positionand the upper roll to be simultaneously' lowered. The known machines of this kind have heavy stationary. roll stands I in which the lower forming roll is mounted.

The bearing bodies for the upper roll'are mounted on the journals of thelower roll. Rigidly connected or formed integrally .with. these bearing members are the receiver and downwardly directed toothed segments which are engaged by a drive which is separate from the roll drive and designed to accomplish the tilting of the receiver and of theupper roll. These machines are complieatedand large quantities of material are required forthe heavy roll stands and the tilting segments. Besides, the journals of the lower roll must be made very strong because they have to support the bearing bodies for the upper roll and the weight of the receiver and tilting segments which are connected with the bearing-bodies. Moreover, there is required in connection with the roll- 'ing machine a travelling crane with tilting 40 tongs fonthe pots to be emptied into the machine. It has also been. proposed to use instead of thefcrane carriages or the like for transporting the pots from the melting 1 furnace to the rolling machine andtodeliver them into tilting tongs fixedly mounted ad-,

charged from a pot adjacent to the forming 465,205, and in Germany July 11, 1929.

jacent to the machine. In the known machines, vthe chute which isarrang'ed on the delivery side of the forming rolls is always downwardly inclined at a substantial angle and the glass mass, as soon as it has been dis- 0 rolls, will immediately flow through the pass between such rolls and down the chute before it will have spread uniformly on the receiver along the rolls, so that the sheet is formed with a rounded head end which must be cut off. 7

.The invention has for its objectto provide animproved plate glass rolling machine of the kind stated, which is of much lower weight than the known machines so that it can be manufactured at lower-cost and which is simpler in construction and operation and which can be operated with ,a smaller expenditure of power than the known machines. To attain this object, the bearing standards of the forming rolls are formed by segments which are rockingly mounted on pendulum rollers and which do not only carry the forming rolls but alsothe receiver and the delivery chute so thatby turning the segments the rolling mechanism, the receiver and the chute are tilted in unison into the desired positions. The rocking of the segments can be accomplished through a crank drive, an eccentric drive or other suitable means. To further simplify the machine it is contemplated according to, the invention to mount in the segments at the front side of the machine pot holding and-tilting tongs which, during the rocking of the segments, have imparted to them a turning movement of their own for emptying the pot held by them. This turning of the pot tongs is preferabl effected through a crank arm of the sha I 85 of the tongs, which arm during the turning of the segments is guided by its free end along a fixed cam in such a manner that the pot is caused to make the desired emptystructe'd in accordance with the-invention,

the casting crane hitherto employed for the pouring out of the pots and separate operating means for the pot tongs are dispensed with. The chute is carried by the segments in such a manner that it assumes at the be- H ing of the pouring and rolling a horizontal position or even a position slightly inclined upwardly in the direction of delivery of the glass sheets from the forming rolls. The liquid glass mass discharged into the machine is thereby prevented from flowing directly through the forming pass but is caused to spread first on the entire length of the rolls before it moves through the pass,

so that sheets with a substantially rectangular head end are obtained.

In order to allow of the invention to be more clearly understood, it will now be deing drawings in which one form of a plate glass rolling machine according to the invention is illustrated.

Figs. 1, 2 and 3 are vertical transverse sections of the machine in three different positions; Fig. l is a side elevation of the machine; Fig. 5 is a section on the line 5-5 of Fig. 4; Fig. 6 is a detail view of the rolling mechanism proper in connection with the pot tilting tongs, and Fig. 7 is a section similar to Fig. 1 of a machine with a stationary chute.

The forming rolls a, a are mounted in two segments 1) of equal form which rest on pendulum rollers c on which the segments are adapted to rock about the axis of the lower one of the two rolls a, a. The arrangement may also be so that the segments rock about the axis of the upper roll or about another suitable point. Rigidly fastened to the segments 5 in front of the rolls a, a is the receiver'd with a transverse end wall d and in rear of the rolls the chute g is a pair of pot holding and tilting tongs which'are fastened to a cranked portion of a shaft g which is likewise mounted in the segments 5. The'shaft g has an upwardly extending arm h provided at its free end with a roller h which, during the rocking movement of the segments 7), is guided by means of a stationary cam 71 in such a manner that the pot is has imparted to it the desired emptying movement, as more particularly shown in Fig. 6. In the embodiment illustrated, the pot tongs g, g are of such a construction that in the emptying of the pot same is tilted about a horizontal axis located in or near the pouring edge of the pot, as is well-known. rolls a, a are driven from a motor Z which is mounted on a lateral bracket of one of the segments 5, Figs. 4: and 5.

mlis a crank drive connected at n with one or both of the segments 5 and adapted to impart to the segments or the whole ma: chine, respectively, the desired rocking or scribed with reference to the accompany- The tilting movement. Trucks. 0 may be used for feeding the pots to the machine, while the transport of the rolled glass plates from the machine to the lehr may be efi'ected by means of travelling tables p. Instead of the crank drive m, the trucks 0 and the tables 1),

there may also be used any other means suited for the respective purposes.

Fig. 1 shows the machine in the position which it assumes at the beginning of the rolling operation. A melting pot is has been run into the tongs g and these have been closed. The receiver and rolling mechanism are slightly inclined towards the pot A: and the chute-is elevated.- The machine is now rocked by the crank drive m so that the several parts come into the position shown in Fig. 2, in which the pouring of the glass mass into the machine and the rolling are started. In this stage of the operation, the chute f still occupies a horizontal position or a position slightly rising in the'direction of the exit of the glass sheet from the forming pass. By

continuing the rocking or turning of the machine, its parts are brought into the final position shown by Fig. In this position the pot A. has been completely emptied and the chute f lowered so that its free end lies closely above the transporting tables 39 and that the glass sheet'emerging from between the forming rolls can glide freely onto these tables. The length of the chute is chosen in conformity with the tilting speed and the rolling speed so that the glass will reach the free end of the chute f and the tables go no sooner than the machine has come into its final position, Fig. 3. Upon the content of the pot is having been rolled out, the machine is rocked reversely into the initial position, Fig. 1, in which the empty pot k is again deposited on the truck 0. The tongs g are opened, the truck 0 with the empty pot on it is run away and a fresh pot fed to the machine, whereupon the described. operation is repeated.

It will also be within the scope of the invention to use a stationary chute f as has hitherto been customary in the known plate glass rollin machine. The initial position of a machine according to the invention with a stationary chute is illustrated in Fig. 7

Having thus described my invention, what v ing a pair of spaced segment-shaped standards, pendulum rollers for rockingly supporting the standards, a pair of cooperative plate forming rolls mounted in the standards, a receiver for the liquid glass mass carried by the standards in front of the forming rolls, a pot holding and tilting device mounted in the standards adjacent to the receiver, a delivery chute for the rolled plates carriedbythe standards on the rear side of the forming rolls, means for rocking dulum rollers to tilt the receiver, the forming rolls and the chute in unison to various positions, and means for imparting. to the .pot holding device a turning movement of its own for emptying the pot onto the receiver while the standards are being rocked.

3. A plate glass rolling machine, comprising a pairof spaced segment-shaped standards, pendulum rollers for rockingly supporting the standards, a pair of cooperative late forming rolls mounted in the standar a receiver for the liquid glass mass carried by the standards in front of the forming rolls, a shaft with a pair of pot holding and tilting tongs mountedhorizontally in the standards adjacent to the receiver, a delivery chute for the rolled lates carried by the standards on the rear si e of the forming rolls, means for rocking thestandards on the pendulum V rollers to tilt the receiver, the forming rolls and the chute in unison to various positions, a crank arm on the shaft of the pot tongs and a stationary .cam for engaging and guiding the free end of the said crank arm during the rocking movement of the standards so as to cause the shaft and the tongs to make a turning movement of their own the pot into the machine.

. 4. A plate glass rolling machine, comprising a pair of spaced segment-sha ed standards, pendulum rollers for rockmgly supporting the standards, a pair of plate forming rolls mounted in the'standards, a driving motor for the forming rolls carried by one of the standards, a receiver for the liquid glass mass carried by the'standards on the front side of the forming rolls, a delivery chute for the standards on the pen-.

side of the forming rolls that it assumes at the beginning of the rolling operation a substantially horizontal or slightly rising p051 tion in the direction of the delivery of the plates, and means for rocking the standards on the pendulum'rollers' to tilt the receiver, the forming rolls and the chute in unison to various pos1tions. v

In testimony whereof I have signed my name to this specification.

RICHARD GENENGER.

for emptying the rolled plates carried by the standards on i the rear side of the forming rolls, and means for rocking the standards-on the pendulum rollers to tilt the receiver, the forming rolls and the chute in unison to various positions.

5. A plate glass rolling machine, compris ing a pair of spaced segmentshaped stand ards, pendulum rollers for rockmgly supporting these standards, a pair of cooperative plate forming rolls mounted in the standards,

a receiver for the liquid glass mass carned by the standards on the front side of the forming rolls, a delivery chute for the rolled plates so carried by the standards on the rear 

